在线材与棒材内部不能有焊接。钢绞线内的单条钢绞线可能有交错焊缝，但必须是在冷拉之前。
P There shall be no welds in wires and bars. Individual wires of strands may contain staggered welds made only before cold drawing.
在线材与棒材内部不能有焊接。钢绞线内的单条钢绞线可能有交错焊缝，但必须是在冷拉之前。
P There shall be no welds in wires and bars. Individual wires of strands may contain staggered welds made only before cold drawing.
应用推荐